Air con noise - any help appreciated!

[Arkious]

Hello guys, I'm having a lot of trouble trying to identify a fault with my RS3. I've posted here to try and get it to the masses, if anyone could help identify it I would much appreciate it!

A bit background information.... it only happens when the aircon is switched off. It seems to only occour if I've gone for a drive, stopped for a bit and then gone out reasonably quick again after, say about 30-45mins after switching it off. Audi have replaced the air con pump and refreshed the gas.

It's been in 4 times and they are stumped as much as I. Here is the video recorded from inside the car, hopefully someone can help.

 

[aqibi2000]

Clutch for the compressor?

I have the same noise occurring with AC on however just a lot quieter

 

[Arkious]

I'd guess that was changed along with the new pump?

Same fault when on, got a video? That's really strange!

 

[Marek196c]

try to turn off the air con, but leave the fan on (normal air) if it go away, concentrate on air con. if it not, probably is bearing from fan.

 

[Arkious]

That is the noise with the air con off, and it doesn't matter if the internal air fan is on or off that still happens

 

[Marek196c]

so seem to be air con clutch trying to engage also if it's off, you can try to meanwhile this occurs turn ac on then off and see if helps.